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stira [4]
3 years ago
14

Air pollution is an example of a. The underground economy. B. An external shock. C. A nonmarket activity. D. A negative external

ity.
Physics
1 answer:
devlian [24]3 years ago
3 0

Answer:

D. A negative externality.

Explanation:

Particulate pollution is a form of pollution that is responsible for the degradation of the environment.

Particulate matter is also referred to as particle pollution or atmospheric aerosol particles and it can be defined as a complex microscopic mixture of liquid droplets and solid particles that are suspended in air.

An externality is typically an unwarranted cost or benefit by a manufacturer or producer of goods and services that affects a third party.

In Economics, an externality could either be positive or negative depending on its effect on a third party.

A negative externality arises when the production or consumption of a finished product or service has negative impact (cost) on a third party.

In conclusion, air pollution is an example of a negative externality because it causes harm to a third party.

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If you use such a tank to fill 0.020 m3 foil balloons (which don't stretch, and so have an internal pressure that is very close
Arte-miy333 [17]

The question is incomplete, here is a complete question.

Party stores sell small tanks containing 41 g of helium gas.

If you use such a tank to fill 0.020 m³ foil balloons (which don't stretch, and so have an internal pressure that is very close to atmospheric pressure), how many balloons can you expect to fill? Assume the temperature is 20°C.

Answer : The number of balloon filled can be, 12 balloons.

Explanation :

First we have to calculate the number of moles of gas in balloon.

Using ideal gas equation:

PV=nRT

where,

P = pressure of gas = 1 atm  (atmospheric pressure)

V = volume of gas = 0.020m^3=20.0L    (1m^3=1000L)

T = temperature of gas = 20^oC=273+20=293K

n = number of moles of gas = ?

R = gas constant  = 0.0821 L.atm/mol.K

Now put all the given values in the ideal gas equation, we get:

(1atm)\times (20.0L)=n\times (0.0821L.atm/mol.K)\times (293K)

n=0.831mol

Thus, the number of moles of gas in balloon is 0.831 mol per balloon.

Now we have to calculate the mass of gas in balloon.

\text{Mass of gas}=\text{Moles of gas}\times \text{Molar mass of gas}

Molar mass of He gas = 4 g/mole

\text{Mass of gas}=(0.831 mol/balloon)\times 4g/mol=3.32g/balloon

Now we have to calculate the number of balloon can be filled.

Number of balloon filled = \frac{41g}{3.32g/balloon}=12.3balloon\approx 12balloons

Therefore, the number of balloon filled can be, 12 balloons.

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